What code has no check engine light?
The problem that triggered the code may not have happened enough times to illuminate the light. This most likely means the issue is not critical and that the code is pending. So if the check engine light is off, but you see an error code, use an OBD2 scanner to help identify what the problem is.
Why is my engine light on Audi A4?
If the check engine light in your Audi A4 starts blinking, that means that the problem needs urgent attention and your Audi should be brought in immediately. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system.
Can a blown fuse cause check engine light not to come on?
Yes a fuse that controls an emissions device can be blown and cause a check engine light.
What does it mean when the Audi A4 engine light is on?
Switch off the engine as soon as safely possible. Engine oil should be checked and if light remains on, seek assistance from a qualified Audi workshop as soon as possible. See how to check engine oil for further information. When this symbol illuminates it signifies that the brake pads on the vehicle are worn.
Why does my Audi warning light go out after I start the car?
Starting reliability issues may arise. Consult an authorised Audi technician. Light illuminates with ignition activation and goes out a few second after. If the warning light stays on after the engine has started, it indicates a malfunction within the system. Driving can continue at a reduced speed until seen by a qualified Audi Technician.
What does it mean when your Audi has low oil pressure?
The system monitors the engine oil pressure. If this symbol illuminates, it signifies low engine oil pressure. Switch off the engine as soon as safely possible. Engine oil should be checked and if light remains on, seek assistance from a qualified Audi workshop as soon as possible. See how to check engine oil for further information.
What is the electronic power control on an Audi A4?
The Electronic Power Control ( EPC) is an alternative to the engine management light as seen above used on Audi cars. This circle in brackets symbol is a system that monitors the Audi Hold Assist function. Audi Hold Assist helps to keep the vehicle stationary whilst the engine is running. Example can be whilst stopping on a hill at traffic lights.